Irish Mini Owners Club

Hi lads
Can anyone tell me if its possible to buy a seal kit for both the clutch and brake master cylinders?

If so, are there different types of master cylinders for different years or are all the same?
My brake master cyl has a yellow tag on it, so im assuming this means something?????

Thanks in advance

yellow tag master cylinders are cheap enough just replace the whole thing
http://www.minisport.com/mini-spare-par ... MC227.html